Industrial chillers with inverter and integrated free cooler
MR-H/FC MR-M/FC the last series of machines designed and produced by Green
Box offer two functions in one cabinet: the chiller function and the
free-cooler function. The main advantage of this type of machines is the
extremely easy installation, exactly similar to a standard chiller: in fact
there is one inlet and one outlet for the water circuit and only one electrical
A very important characteristic of this range is related to the
fact that all the models are equipped with two rows of fans, one of the rows is
dedicated to the free-cooler and the other row is dedicated to the chiller.
This MR-H/FC series combines the traditional chiller with an
additional air/water heat-exchanger FC, to assure a considerable energy
saving whenever the ambient air temperature allows to
cool the process water.
There are three possible operating ways:
- highest energy saving, when the integrated Free-Cooler covers the complete
- partial energy saving, thanks to the two independent rows of fans, when the
integrated Free-Cooler covers partially the required thermal load and the
remaining thermal load is covered by the chiller
- fully operating as chiller, when the ambient air temperature is the same or
higher than the process water temperature, therefore it is not possible
to use the Free-Cooler
The passage from one to the other way of operation is fully automatic and it
is controlled by a three-way valve.
This is the best way to grant high reliability to the system and easy
cleaning of the finned coils both of the chiller and of the free-cooler.
The basic series, which includes 8 models with cooling capacity from 76 to
302 kW, is characterized by a reduced price .
The commutation from operating as a free-cooler to operating as a chiller
(and viceversa) is fully automatic and it is operated by a Siemens 3-way valve,
controlled by a differential thermostat .
There is also an extremely high efficiency series MR-H/FC INVERTER.